CA2291024C - Carrier recovery in dab receivers - Google Patents

Carrier recovery in dab receivers Download PDF

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Publication number
CA2291024C
CA2291024C CA002291024A CA2291024A CA2291024C CA 2291024 C CA2291024 C CA 2291024C CA 002291024 A CA002291024 A CA 002291024A CA 2291024 A CA2291024 A CA 2291024A CA 2291024 C CA2291024 C CA 2291024C
Authority
CA
Canada
Prior art keywords
frequency offset
value
frequency
output
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002291024A
Other languages
English (en)
French (fr)
Other versions
CA2291024A1 (en
Inventor
Hiroshi Katsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kenwood KK
Original Assignee
Kenwood KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kenwood KK filed Critical Kenwood KK
Publication of CA2291024A1 publication Critical patent/CA2291024A1/en
Application granted granted Critical
Publication of CA2291024C publication Critical patent/CA2291024C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0028—Correction of carrier offset at passband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
CA002291024A 1997-05-28 1998-05-12 Carrier recovery in dab receivers Expired - Fee Related CA2291024C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP15313697A JP3466422B2 (ja) 1997-05-28 1997-05-28 受信装置
JP9/153136 1997-05-28
PCT/JP1998/002087 WO1998054875A1 (en) 1997-05-28 1998-05-12 Carrier recovery in dab receivers

Publications (2)

Publication Number Publication Date
CA2291024A1 CA2291024A1 (en) 1998-12-03
CA2291024C true CA2291024C (en) 2003-01-07

Family

ID=15555799

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002291024A Expired - Fee Related CA2291024C (en) 1997-05-28 1998-05-12 Carrier recovery in dab receivers

Country Status (12)

Country Link
US (1) US6501730B1 (ko)
EP (1) EP0985304B8 (ko)
JP (1) JP3466422B2 (ko)
KR (1) KR100377277B1 (ko)
CN (1) CN1120604C (ko)
AU (1) AU738049B2 (ko)
BR (1) BR9809165B1 (ko)
CA (1) CA2291024C (ko)
DE (1) DE69833251T2 (ko)
RU (1) RU2216113C2 (ko)
TR (1) TR199902908T2 (ko)
WO (1) WO1998054875A1 (ko)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876675B1 (en) * 1998-02-06 2005-04-05 Cisco Technology, Inc. Synchronization in OFDM systems
JP3551235B2 (ja) * 1999-06-25 2004-08-04 日本電気株式会社 Ａｆｃ回路
DE19944495C2 (de) * 1999-09-17 2002-01-03 Bosch Gmbh Robert Verfahren zum Empfang von Funksignalen über einen Funkkanal
US6862297B1 (en) * 1999-12-21 2005-03-01 Cisco Technology, Inc. Wide range frequency offset estimation in OFDM systems
US6606363B1 (en) * 1999-12-28 2003-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for estimating a frequency offset by combining pilot symbols and data symbols
US6930989B1 (en) * 2000-06-20 2005-08-16 Cisco Technology, Inc. Wide frequency offset correction using encoded interburst phase differences
GB0104280D0 (en) * 2001-02-21 2001-11-21 Cambridge Silicon Radio Ltd Estimating frequency offset
JP4449259B2 (ja) * 2001-06-19 2010-04-14 日本電気株式会社 Ａｆｃ回路
US20070021086A1 (en) * 2005-07-22 2007-01-25 Industrial Technology Research Institute Method for path selection and signal processing in wireless communications system
US20070019585A1 (en) * 2005-07-22 2007-01-25 Industrial Technology Research Institute Apparatus for path selection and signal processing in wireless communications system
US7369002B2 (en) * 2005-07-28 2008-05-06 Zarlink Semiconductor, Inc. Phase locked loop fast lock method
JP4585455B2 (ja) 2006-01-20 2010-11-24 富士通セミコンダクター株式会社 復調回路および復調方法
CN101247622B (zh) * 2008-03-03 2011-07-20 中兴通讯股份有限公司 一种音频通信系统的测试方法及装置
CN101854322B (zh) * 2009-03-31 2012-07-04 华为技术有限公司 一种频率跟踪方法、系统和鉴频器
CN101989863B (zh) * 2010-11-04 2013-10-09 华为终端有限公司 一种频偏快速跟踪装置及方法
CN103188175B (zh) * 2011-12-30 2018-05-04 国民技术股份有限公司 一种频率补偿电路、解调系统及解调方法
RU2625806C1 (ru) * 2016-04-08 2017-07-19 Сергей Александрович Косарев Способ передачи тревожных сообщений по радиоэфиру
CN111541507B (zh) * 2020-04-20 2021-12-14 吉林省广播电视研究所(吉林省广播电视局科技信息中心) 单片机测频式调频立体声解调系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100355684B1 (ko) * 1992-11-26 2002-12-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 직접변환수신기
DE69406151T2 (de) * 1993-01-13 1998-04-02 Koninkl Philips Electronics Nv Einrichtung zur Synchronisierung eines lokalen Trägers, in OFDM-Systemen
DE69533246T2 (de) * 1994-03-25 2005-08-25 Samsung Electronics Co., Ltd., Suwon Verfahren und Vorrichtung für automatische Frequenzregelung
JP3130773B2 (ja) * 1995-10-16 2001-01-31 日本電気株式会社 無線データ通信の復調装置
JP3556047B2 (ja) * 1996-05-22 2004-08-18 三菱電機株式会社 ディジタル放送受信機
JPH1051418A (ja) * 1996-08-06 1998-02-20 Mitsubishi Electric Corp ディジタル受信装置
JP3666162B2 (ja) * 1997-01-31 2005-06-29 三菱電機株式会社 ディジタル放送受信機
JPH10257013A (ja) * 1997-03-14 1998-09-25 Toshiba Corp 受信装置
JPH10303851A (ja) * 1997-04-25 1998-11-13 Mitsubishi Electric Corp デジタル放送受信機
JP3549361B2 (ja) * 1997-05-13 2004-08-04 三菱電機株式会社 ディジタル音声放送受信機
CN1146111C (zh) * 1997-06-19 2004-04-14 皇家菲利浦电子有限公司 数字通信设备

Also Published As

Publication number Publication date
EP0985304B8 (en) 2006-08-02
TR199902908T2 (xx) 2000-04-21
DE69833251D1 (de) 2006-04-06
AU738049B2 (en) 2001-09-06
JP3466422B2 (ja) 2003-11-10
RU2216113C2 (ru) 2003-11-10
JPH10336138A (ja) 1998-12-18
US6501730B1 (en) 2002-12-31
KR20010012896A (ko) 2001-02-26
CN1257629A (zh) 2000-06-21
DE69833251T2 (de) 2006-07-13
BR9809165A (pt) 2000-08-01
BR9809165B1 (pt) 2013-04-02
KR100377277B1 (ko) 2003-03-28
AU7235998A (en) 1998-12-30
CA2291024A1 (en) 1998-12-03
EP0985304A1 (en) 2000-03-15
CN1120604C (zh) 2003-09-03
WO1998054875A1 (en) 1998-12-03
EP0985304B1 (en) 2006-01-18

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Effective date: 20180514